Lactic acid series
[建] 乳酸系, 邻位羟基酸系
🧩 词语组成解析
lactic
['læktik]
adj. 乳的;
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
Which one is the longest river in China?
中国哪条河流最长？
this little 'o' indicated that the train only stopped for mail.
这个标记表示列车是为装邮件而停车。